Date: Tue, 22 Jul 1997 11:35:27 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: msmith@atrad.adelaide.edu.au (Michael Smith) Cc: louie@TransSys.COM, msmith@atrad.adelaide.edu.au, imp@rover.village.org, sef@kithrup.com, current@FreeBSD.ORG Subject: Re: I am contemplating the following change... Message-ID: <199707221835.LAA13737@phaeton.artisoft.com> In-Reply-To: <199707220217.LAA26051@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Jul 22, 97 11:47:51 am
next in thread | previous in thread | raw e-mail | index | archive | help
> > Back in the days when I ran 4.[23]BSD on my VAX 11/750, the autoconfig > > code planted trap catchers in all the likely interrupts vectors. All > > you had to do was poke at the device being probed enough to cause an > > interrupt, any interrupt. I don't seem to recall configuring > > interrupt vectors in my kernel config, and the good thing about UNIBUS > > peripherals is that you weren't likely to run out of interrupts. > > > > Or am I just dreaming this? > > No, you're not dreaming it. > > But ISA is not Unibus. Specifically: o Not all cards will be on different interrupts o Not all cards can be non-destructively "poked" o IRQ 7 is a grabage interrupt that can't be distinguished between an error and a "poke" Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199707221835.LAA13737>